Audi Workshop Service and Repair Manuals > A4 Mk2 > Vehicle electrics | Communication | Infotainment | Telephone system | Connectors and pin assignment | Telephone transmitter and receiver unit R36 (mobile phone pre-installation) from MY 03

Telephone transmitter and receiver unitR36 (mobile phone pre-installation) from MY 03

Telephone transmitter and receiver unit -R36- (mobile phone pre-installation) from MY 03

Connectors

A -	Connection (yellow) for aerial for Bluetooth -R152-

B -	Multi-pin connector, 54-pin, black

Note

Contacts which are not listed are not used.

B - Multi-pin connector, 54-pin, black

1 -	Terminal 30

2 -	Terminal 31

3 -	Mobile phone “ON” signal to aerial amplifier for mobile telephone -R86-

8 -	NF+ (low frequency) to radio -R- / navigation system with CD drive control unit -J401- / control unit with display for radio and navigation -J503-

9 -	NF– (low frequency) to radio -R- / navigation system with CD drive control unit -J401- / control unit with display for radio and navigation -J503-

11 -	Microphone input (+) to telephone microphone -R38- / navigation system with CD drive control unit -J401-

12 -	Microphone input (–) to telephone microphone -R38- / navigation system with CD drive control unit -J401-

15 -	K diagnosis

16 -	NF mute (low frequency) to radio -R- / navigation system with CD drive control unit -J401-

17 -	CAN Bus High (Infotainment)

18 -	CAN Bus Low (Infotainment)

37 -	Terminal 30 to telephone bracket -R126-

39 -	Terminal 31 to telephone bracket -R126-

41 -	Terminal 30 to telephone bracket -R126-

42 -	Microphone output (+) to telephone bracket -R126-

43 -	Microphone output (–) to telephone bracket -R126-

44 -	Terminal 31 (screen earth)

45 -	NF+ (low frequency) from telephone bracket -R126-

46 -	NF – (low frequency) from telephone bracket -R126-

47 -	SNDREQ signal from telephone bracket -R126-

49 -	Ser-Tx (+) to telephone bracket -R126-

50 -	Ser-Tx (–) to telephone bracket -R126-

51 -	Ser-Rx (+) from telephone bracket -R126-

52 -	Ser-Rx (–) from telephone bracket -R126-

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